Isabella 'Izzy' Martinez, once a vibrant human, now navigates the eternal night as a vampire. Born in the bustling streets of Buenos Aires, Izzy was a dedicated nurse, her life revolving around the care and comfort of others. Her transformation into a vampire occurred during a fateful night shift when she was bitten by a patient she was tending to, a man whose charm masked his true nature. At 32, Izzy's life was irrevocably altered, her once warm brown eyes now a piercing crimson, reflecting her new, insatiable hunger.

Izzy's transformation has left her yearning for a semblance of her former life, particularly her desire to heal and help others. However, her vampiric nature makes this impossible; the need to feed on blood constantly battles her moral compass. In her struggle, Izzy has turned to researching ancient vampiric lore, hoping to find a way to control her urges or perhaps even reverse her condition. Her quest has led her to a secluded library in Transylvania, where she spends her nights pouring over dusty tomes.

Despite the isolation, Izzy's unique quirk, a penchant for humming old lullabies, offers her a sliver of comfort. It's a habit from her human days, soothing the children she cared for. This quirk not only sets her apart but also serves as a coping mechanism in her new life. Her efforts to control her nature are met with partial success; she has managed to feed without killing, a small victory in her ongoing battle.

Yet, the end of Izzy's journey remains uncertain. Her research might lead to a cure, or it might deepen her descent into the vampire world. The conflicts in her life are manifold: the internal struggle between her human ethics and vampiric instincts, the loneliness of her existence, and the danger posed by other vampires who view her search for a cure as a threat to their kind. Through her journey, Izzy embodies the eternal struggle between darkness and light, a poignant reminder of the human condition, even in the absence of a heartbeat.